Lightdm will not start after latest 15.04 updates, works with upstart

Bug #1434799 reported by professordes
20
This bug affects 4 people
Affects Status Importance Assigned to Milestone
lightdm (Ubuntu)
Confirmed
Undecided
Unassigned

Bug Description

lightdm fails to start on several Lenovo thinkpads (X240, X201, X300, T410...) after the latest round of 15.04 beta updates on 20/03/15. The system boots into low graphics mode, but the only working option from this is the console login.

If the laptops are started using upstart from the "advanced" boot options, lightdm starts as normal on all the affected laptops.

All had been working with systemd running 15.04 beta after earlier upgrades from 14.10 before yesterday's updates.

A Thinkpad T430s is still starting lightdm as normal (i.e. with a systemd startup) after the updates.

gdm will start up OK on the affected machines under systemd. The laptops in question have lightdm, gdm and sddm installed with lightdm as the original default.

description: updated
description: updated
description: updated
Revision history for this message
Robert Ancell (robert-ancell) wrote :

Can you attach /var/log/lightdm/lightdm.log after this occurs? Thanks.

Revision history for this message
Launchpad Janitor (janitor) wrote :

Status changed to 'Confirmed' because the bug affects multiple users.

Changed in lightdm (Ubuntu):
status: New → Confirmed
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